Knife blade scraper tool



FIG. 1 is a top plan view of a knife blade scraper tool showing my new design;

FIG. 2 is a left side elevational view thereof, the undisclosed right side being a mirror image;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a front end view thereof; and,

FIG. 5 is a rear end view thereof. 

The ornamental design for a knife blade scraper tool, as shown and described. 